A first look at the planar two-loop six-particle Feynman integrals

These days the colliders are generating experimental data with great precision. To compare with the experiments, one needs to have more theoretical calculations in perturbative QCD. In this talk, I will introduce some traditional methods for evaluating Feynman integrals and shortly present our recent paper on 2-loop 6-point integrals calculations. In this paper, we found the UT basis of 2-loop 6-point integrals and explored the possible functions of the 6-point scattering process.